package tech.zhiwei.frostmetal.core.jackson;

import cn.hutool.core.date.DatePattern;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.json.JsonReadFeature;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.time.ZoneId;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

@Configuration
public class JacksonConfig {

    @Bean
    public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
        builder.simpleDateFormat(DatePattern.NORM_DATETIME_PATTERN);

        //创建ObjectMapper
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        //设置地点为中国
        objectMapper.setLocale(Locale.CHINA);
        //去掉默认的时间戳格式
        objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
        //设置为中国上海时区
        objectMapper.setTimeZone(TimeZone.getTimeZone(ZoneId.systemDefault()));
        //序列化时，日期的统一格式
        objectMapper.setDateFormat(new SimpleDateFormat(DatePattern.NORM_DATETIME_PATTERN, Locale.CHINA));
        //序列化处理
        objectMapper.configure(JsonReadFeature.ALLOW_UNESCAPED_CONTROL_CHARS.mappedFeature(), true);
        objectMapper.configure(JsonReadFeature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER.mappedFeature(), true);
        //失败处理
        objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        //单引号处理
        objectMapper.configure(JsonReadFeature.ALLOW_SINGLE_QUOTES.mappedFeature(), true);
        //反序列化时，属性不存在的兼容处理
        objectMapper.getDeserializationConfig().withoutFeatures(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        //日期格式化
        objectMapper.configure(MapperFeature.IGNORE_DUPLICATE_MODULE_REGISTRATIONS, false);
        SimpleModule module = new SimpleModule();
        module.addDeserializer(Date.class, new CustomDateDeserializer());
        // Long默认转String
        module.addSerializer(Long.class, new JsonSerializer<Long>() {
            @Override
            public void serialize(Long value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
                gen.writeString(String.valueOf(value));
            }
        });
        objectMapper.registerModule(module);
        objectMapper.configure(MapperFeature.IGNORE_DUPLICATE_MODULE_REGISTRATIONS, true);
        objectMapper.findAndRegisterModules();
        return objectMapper;
    }
}
